Hello!
Although in Maya, there are commerical plugin like Blast Code, can make realistic windows cracks, however the Blast Code plugin don't have max version. In this video tutorial I demo you how to use a photo of broken window, convert this bipmap to raster file (in AI format) and import this raster file in 3ds max. Base on the raster file (Adobe illustrator, *.ai) model a broken window.
Hammer
tutorial click HERE
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